| Portrait | Name | Reign[k] | Succession | Life details |
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 | Maximinus I "Thrax" Gaius Julius Verus Maximinus | c. March 235 – c. June 238 (3 years and 3 months) | Proclaimed emperor by Germanic legions after the murder ofSeverus Alexander, recognized at Rome on 23 March 235 | c. 172–180 – c. June 238 (aged approx. 58–66) First commoner to become emperor. Murdered by his men during thesiege of Aquileia against the Senatorial forces ofPupienus andBalbinus[85] |
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 | Gordian I Marcus Antonius Gordianus Sempronianus Romanus | c. April –c. May 238 (22 days) | Proclaimed emperor alongside his son,Gordian II, while serving as governor ofAfrica, in a revolt againstMaximinus, and recognized by theSenate | c. 158 (?) – c. May 238 (aged approx. 80) Oldest emperor at the time of his elevation. Committed suicide upon hearing of the death of his son[86] |
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 | Gordian II Marcus Antonius Gordianus Sempronianus Romanus | c. April – c. May 238 (22 days) | Proclaimed emperor alongside his fatherGordian I, during revolt inAfrica againstMaximinus | c. 192 – c. May 238 (aged approx. 46) The shortest-reigning emperor. Killed outsideCarthage in battle against an army loyal toMaximinus I[87] |
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 | Pupienus Marcus Clodius Pupienus Maximus | c. May – c. August 238 (99 days) | Proclaimed emperor jointly withBalbinus by the Senate after death ofGordian I andII, in opposition toMaximinus | c. 164 – c. August 238 (aged approx. 74) Tortured and murdered by thePraetorian Guard[88] |
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 | Balbinus Decimus Caelius Calvinus Balbinus | c. May – c. August 238 (99 days) | Proclaimed emperor jointly withPupienus by the Senate after death of Gordian I and II, in opposition toMaximinus | c. 178 – c. August 238 (aged approx. 60) Tortured and murdered by thePraetorian Guard[89] |
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 | Gordian III Marcus Antonius Gordianus | c. August 238 – c. February 244 (c. 5 years and 6 months) | Grandson ofGordian I, appointed as heir byPupienus andBalbinus, upon whose deaths he succeeded as emperor | 20 January 225 – c. February 244 (aged 19) Died during campaign againstPersia, possibly in a murder plot instigated byPhilip I[90] |
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 | Philip I "the Arab" Marcus Julius Philippus | c. February 244 – September/October 249 (c. 5 years and 7/8 months) | Praetorian prefect underGordian III, seized power after his death | c. 204 – September/October 249 (aged approx. 45) Killed at theBattle of Verona, againstDecius[91] |
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 | Philip II "the Younger" (§) Marcus Julius Severus Philippus | July/August 247 – September/October 249 (c. 2 years and 2 months) | Son of Philip I, appointed co-emperor | c. 237 – September/October 249 (aged approx. 12) Murdered by thePraetorian Guard[92] |
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 | Decius Gaius Messius Quintus Traianus Decius | September/October 249 – June 251 (c. 1 year and 8/9 months) | Proclaimed emperor by the troops inMoesia, then defeated and killedPhilip I in battle | c. 190/200 – June 251 (aged approx. 50/60) Killed at theBattle of Abrittus, against theGoths[93] |
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 | Herennius Etruscus (§) Quintus Herennius Etruscus Messius Decius | May/June – June 251 (less than a month) | Son ofDecius, appointed co-emperor | Unknown – June 251 Killed at theBattle of Abrittus alongside hisfather[94] |
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 | Trebonianus Gallus Gaius Vibius Trebonianus Gallus | June 251 –c. August 253 (c. 2 years and 2 months) | Senator and general, proclaimed emperor after the deaths ofDecius andHerennius Etruscus | c. 206 – c. August 253 (aged 47) Murdered by his own troops in favor ofAemilian[95] |
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 | Hostilian (§) Gaius Valens Hostilianus Messius Quintus | c. June – c. July 251 (c. 1 month) | Younger son of Decius, namedcaesar by his father and proclaimed co-emperor by Trebonianus Gallus | Unknown – c. July 251 Died ofplague or murdered by Trebonianus Gallus[96] |
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 | Volusianus (§) Gaius Vibius Afinius Gallus Veldumnianus Volusianus | c. August 251 – c. August 253 (2 years) | Son of Gallus, appointed co-emperor | c. 230 – c. August 253 (aged approx. 23) Murdered by the soldiers, alongside his father[97] |
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 | Aemilianus Marcus Aemilius Aemilianus | c. July – c. September 253 (2 months?) | Commander inMoesia, proclaimed emperor by his soldiers after defeating barbarians, in opposition to Gallus | c. 207 – c. September 253 (aged approx. 46) Murdered by his own troops in favor ofValerian[98] |
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 | Silbannacus[l] (#) Mar. Silbannacus | c. September/October 253 (?) (very briefly?) | Obscure figure known only from coinage, may have briefly ruled in Rome between Aemilianus and Valerian | Nothing known[22] |
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 | Valerian Publius Licinius Valerianus | c. September 253 – c. June 260 (c. 6 years and 9 months) | Army commander inRaetia andNoricum, proclaimed emperor by the legions in opposition to Aemilian | c. 200 – after 262 (?) Captured at Edessa by thePersian kingShapur I, died in captivity possibly forced to swallow molten gold[102] |
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 | Gallienus Publius Licinius Egnatius Gallienus | c. September 253 – c. September 268 (15 years) | Son of Valerian, appointed joint emperor. Sole emperor after Valerian's capture in 260 | 218 – c. September 268 (aged 50) Facedmultiple revolts & barbarian invasions. Murdered in a conspiracy of army officers, involvingClaudius II andAurelian[103] |
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 | Saloninus[m] (§) Publius Licinius Cornelius Saloninus Valerianus | Autumn 260 (c. 1 month) | Son of Gallienus, proclaimedcaesar by his father and proclaimed emperor by the praetorian prefectSilvanus while besieged byPostumus | Unknown – Late 260 Murdered by troops loyal to Postumus[106] |
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 | Claudius II "Gothicus" Marcus Aurelius Claudius | c. September 268 – c. August 270 (c. 1 year and 11 months) | Army commander inIllyria, proclaimed emperor after Gallienus's death | 10 May 214 – August/September (?) 270 (aged approx. 55) Died ofplague[107] |
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 | Quintillus Marcus Aurelius Claudius Quintillus | c. August – c. September 270 (c. 27 days) | Brother of Claudius II, proclaimed emperor after his death | Unknown – 270 Committed suicide or killed at the behest of Aurelian[108] |
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 | Aurelian Lucius Domitius Aurelianus | c. August 270 – c. November 275 (c. 5 years and 3 months) | Commander of the Roman cavalry, proclaimed emperor by Danube legions after Claudius II's death, in opposition to Quintillus | 9 September 214 – Sept./Dec. 275 (aged 61) Reunified the Roman Empire. Murdered by thePraetorian Guard[109] |
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 | Tacitus Marcus Claudius Tacitus | c. December 275 – c. June 276 (c. 7 months) | Allegedprinceps senatus, proclaimed emperor by theSenate or, more likely, by his soldiers inCampania after Aurelian's death | c. 200 (?) – c. June 276 (aged approx. 76) Died of illness or possibly murdered[110] |
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 | Florianus Marcus Annius Florianus | c. June – September 276 (88 days) | Maternal half-brother of Tacitus, proclaimed himself emperor after the death of Tacitus | Unknown – September/October 276 Murdered by his own troops in favor of Probus[111] |
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 | Probus Marcus Aurelius Probus | c. June 276 – c. September 282 (c. 6 years and 3 months) | General; proclaimed emperor by the eastern legions, in opposition to Florianus | 19 August 232 – c. September 282 (aged 50) Murdered by his own troops in favor of Carus[112] |
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 | Carus Marcus Aurelius Carus | c. September 282 – c. July/August 283 (c. 10 months) | Praetorian prefect under Probus, seized power before or after Probus's murder | c. 224 (?) – c. July/August 283 (aged approx. 60) Died inPersia, either of illness, assassination, or by being hit by lightning[113] |
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 | Carinus Marcus Aurelius Carinus | Spring 283 – August/September 285 (2 years) | Son of Carus, appointed joint emperor shortly before his death. Succeeded jointly with Numerian | c. 250 – August/September 285 (aged approx. 35) Probably died in battle against Diocletian, likely betrayed by his own soldiers[114] |
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 | Numerian Marcus Aurelius Numerianus | c. July/August 283 – November 284 (1 year and 3/4 months) | Son of Carus, succeeded jointly with Carinus | c. 253 – November 284 (aged approx. 31) Died while marching to Europe, probably of disease, possibly assassinated[115] |
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